The Second Amendment wasn't about hunting
Contrary to what you seem to believe, people don't have to justify their purchases. A MAC-10 is a POS (piece of excrement) as a weapon. Some people want one. A Uzi is a pretty good infantry weapon for urban combat. Some people want one. A Ford Excursion is a huge vehicle. Some people want one. They don't have to justify their "need" to own any of those items - not with me, not with you, and not with the government. It's rather arrogant to presume to tell others what they can and can't purchase based on your assumptions about their needs.